Connecting member and connecting method for redirecting flowable material

1. A connecting member, comprising:

a fastening portion configured to be fastened to an object by an adhesive, wherein the fastening portion comprises a fastening area configured to come into contact with the object to be fastened;

at least one supply opening for supplying the adhesive and at least one discharge opening for discharging a part of the adhesive, wherein the at least one supply opening and the at least one discharge opening are arranged outside of the fastening portion or at least outside of the fastening area; and

a channel connecting the at least one supply opening and the at least one discharge opening and configured to direct a flow of the adhesive, wherein the channel comprises at least one open channel portion that at least partly extends on a surface of the fastening portion and that comprises at least one redirecting portion configured to redirect the flow of the adhesive between the at least one supply opening and the at least one discharge opening,

wherein the at least one open channel portion comprises at least one helical portion, wherein a first helical portion of the at least one helical portion is connected to the at least one redirecting portion and wherein a second helical portion of the at least one helical portion is connected to the at least one redirecting portion.

2. The connecting member according to claim 1 , wherein the connecting member has an axial extension, and wherein the redirecting portion is axially located on a same side of the at least one supply opening and of the at least one discharge opening with respect to the axial extension of the connecting member.

3. The connecting member according to claim 1 , wherein the at least one open channel portion extends on an outer circumferential surface of the fastening portion or on an inner circumferential surface of the fastening portion.

4. The connecting member according to claim 3 , wherein the fastening area is formed by the outer circumferential surface or the inner circumferential surface of the fastening portion.

5. The connecting member according to claim 1 , wherein the at least one channel includes a first internal channel portion and a second internal channel portion, both extending within the body of the connecting member.

6. The connecting member according to claim 5 , wherein the first internal channel portion connects the at least one supply opening to the open channel portion, and wherein the second internal channel portion connects the at least one open channel portion and the at least one discharge opening.

7. The connecting member according to claim 1 , wherein the at least one redirecting portion has a U-shape.

8. The connecting member according to claim 1 , wherein the at least one supply opening and the at least one discharge opening are included in at least one plane, which extends perpendicular to a longitudinal axis of the fastening portion.

9. The connecting member according to claim 8 , wherein the at least one plane is spaced apart from the fastening portion.

10. The connecting member according to claim 1 , wherein the at least one supply opening and the at least one discharge opening are separated from the fastening portion by a step-like portion defining an abutment surface for an abutment of the object to be fastened to the fastening portion of the connecting member.

11. The connecting member according to claim 1 , wherein the fastening portion has a cylindrical shape and is configured to be connected to the object having a rod, duct or tube shape.

12. The connecting member according to claim 1 , wherein the connecting member comprises an attachment portion for attachment of an object to be connected to the other object by means of the connecting member.

13. A connecting member, comprising:

a fastening portion configured to be fastened to an object by an adhesive, wherein the fastening portion comprises a fastening area configured to come into contact with the object to be fastened;

at least one supply opening for supplying the adhesive and at least one discharge opening for discharging a part of the adhesive, wherein the at least one supply opening and the at least one discharge opening are arranged outside of the fastening portion or at least outside of the fastening area; and

a channel connecting the at least one supply opening and the at least one discharge opening and configured to direct a flow of the adhesive, wherein the channel comprises at least one open channel portion that at least partly extends on a surface of the fastening portion and that comprises a redirecting portion configured to redirect the flow of the adhesive coming from the at least one supply opening to the at least one discharge opening,

wherein the at least one open channel portion comprises at least one helical portion, a first helical portion of the at least one helical portion is connected to the at least one redirecting portion and wherein a second helical portion of the at least one helical portion is connected to the at least one redirecting portion.

14. A connecting method for connecting a connecting member with an object by an adhesive, wherein the connecting member comprises:

a fastening portion configured to be fastened to the object by the adhesive, wherein the fastening portion comprises a fastening area configured to come into contact with the object to be fastened;

at least one supply opening for supplying the adhesive and at least one discharge opening for discharging a part of the adhesive, wherein the at least one supply opening and the at least one discharge opening are arranged outside of the fastening portion at least outside of the fastening area; and

a channel connecting the at least one supply opening and the at least one discharge opening and configured to direct a flow of the adhesive, wherein the channel comprises at least one open channel portion that at least partly extends on a surface of the fastening portion and that comprises at least one redirecting portion configured to redirect the flow of the adhesive between the at least one supply opening and the at least one discharge opening, wherein the at least one open channel portion comprises at least one helical portion, a first helical portion of the at least one helical portion is connected to the at least one redirecting portion and wherein a second helical portion of the at least one helical portion is connected to the at least one redirecting portion,

wherein the method comprises the steps of:

arranging the fastening portion of the connecting member at the object such that the at least one open channel portion is covered by a surface of the object to form a closed channel portion;

supplying the adhesive via the at least one supply opening to the channel of the connecting member, wherein the adhesive flows through a first internal channel portion, the closed channel portion and a second internal channel portion to the at least one discharge opening, wherein the adhesive in the closed channel portion comes into contact with both the connecting member and the object, to establish an adhering connection between the connecting member and the object; and

stopping adhesive supply when the adhesive leaks out the at least one discharge opening.